Medea Super Lube.
It is a thick mineral oil (with a trace of blue dye).
That little tiny bottle lasts a VERY long time. If it doesn't you are using way too much.
After my airbrush is clean, I take the red cap off the spout and just touch it to the web between my thumb and forefinger. No need to squeeze; a wet spot about twice as big as a pin head is enough. Then I drag the part of the needle that passes through the seal though the spot on my hand. Then I use my finger tips to wipe it all off. The residue that remains is just about right.
If the Super Lube isn't handy, I've been known to rub a little oil off the side of my nose.
After lube, you want to spray a little lacquer (nitrocellulose) thinner through the brush before you paint. Just a .5 ml. You do not want any traces of lube in your paint job.
"I like it."
--s(077